New higher levels of 144Nd in the decay of 144Pm

Eissa, N. A.; Berényi, D.; Máthé, Gy.; Varga, D.; Rezanka, I.; Malý, L.

doi:10.1016/0375-9474(67)90420-4

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…In the determination of the ~t< coefficient the data of ah earlier work of ours [5] were used in which the gamma spectrum was measured by Ge(Li) techniques with the same source material. From that work the relative intensities of the 143pm and 144Pm lines are known.…”

Section: (Received 24 VIII 1967)mentioning

confidence: 99%

“…The source was obtained by radiochemical separations of the Pro fraetion from Ta, Er and Gd targets irradiated in the Dubna synchrocyclotron. At the time of our measurements the source contained only 144pm in a considerable quantity, besides 143pm.In the determination of the ~t< coefficient the data of ah earlier work of ours [5] were used in which the gamma spectrum was measured by Ge(Li) techniques with the same source material. From that work the relative intensities of the 143pm and 144Pm lines are known.…”

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confidence: 99%

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Measurements of the conversion lines of the 742 KeV transition in the decay of143Pm

Berényi

Varga

1968

Acta Physica

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The decay scheme of 143Pm is fairly simple [1]. Only one gamma ray with an energy of 741.8 • 1.5 keV [2] pertains to the decay. In spite of this only one datum on the zr internal conversion coefficient in this transition has been published [3] and no measurement is available for the ratio of the coefficients ~K/~L ~-zrIn our measurements the conversion lines were taken with a toroidsector type beta ray spectrometer [4] which has both a resolution and a transmission of about 3% under the actual experimental conditions. The source was obtained by radiochemical separations of the Pro fraetion from Ta, Er and Gd targets irradiated in the Dubna synchrocyclotron. At the time of our measurements the source contained only 144pm in a considerable quantity, besides 143pm.In the determination of the ~t< coefficient the data of ah earlier work of ours [5] were used in which the gamma spectrum was measured by Ge(Li) techniques with the same source material. From that work the relative intensities of the 143pm and 144Pm lines are known.To determine the ~I< in question we now measured the relative intensity of the 742 keV-K conversion line of 143pm and the 695 keV-K line of ~44pm the multipolarity of whieh is well known [1], [3] (for further details see [6]).The values of ~K/~c + ~M from our measurements and according to the ROSE tabulation [6] are given in Tables I and II.

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Section: (Received 24 VIII 1967)mentioning

confidence: 99%

mentioning

confidence: 99%

Measurements of the conversion lines of the 742 KeV transition in the decay of143Pm

Berényi

Varga

1968

Acta Physica

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“…Several counters were used for muon detection after passing through the metals such as scintillation detectors (Antonuccio et al 2017;Eissa et al 1967), cloud chamber detectors (Das Gupta & Ghosh 1946;Tanaka 2008) and gaseous detectors (Dixit & Rankin 2006;George et al 1942). Early works used gaseous and scintillation counters with a few coincidences to ensure the measured count rate are caused by incident muons through the metals but within a large solid angle (Antonuccio et al 2017;Brini et al 1955;Eissa et al 1967;Swann & Ramsey 1940). Gas detectors (Geiger-Muller counters) were first used to obtain the count rate due to the ionizations caused by the muon interaction with the gas (George et al 1942;Heyland & Duncanson 1953;Jánossy & Nagy 1957).…”

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confidence: 99%

Investigation of Simple Portable Telescope Validity for Muon Detection Inside Metals

Altameemi¹,

Hamid²,

Kamil³

et al. 2019

JSM

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Muons produced in the atmosphere by cosmic rays are preferred over gamma rays, X-rays and fast protons for the detection of metals in the study of radiography. An alternative method for metals detection involving portable and relatively cheap Geiger-Muller counters are proposed. The objective of this study was to investigate the validity of using a handmade muon telescope with a small solid angle for the detection of muons inside the metals. This experiment was carried out at Universiti Kebangsaan Malaysia, Bangi (101.78º E, 2.92º N and elevation 30 m). Measurement of muons was conducted in the vertical direction using 1 set of muon telescopes (MT) consisting of coaxial Geiger-Muller (GM) counters. Different metals-lead (Pb), zinc (Zn) and aluminium (Al)-were used as absorbers with different thickness to observe its influence on the count rate of muons. The efficiency of the experimental setup was evaluated using statistical methods and by obtaining sufficient number of muon detection events to describe the physics of the muon interaction with the metals. Based on the Rossi curve obtained for each metal, the transition point was estimated as follows: 1.5 cm for Pb, 4.0 cm for Zn, and 9.0 cm for Al. The results showed that the proposed alternative setup was adequate for detecting muons and therefore have the potential to be further developed.

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The decay of 44Pm and the energy levels of 144Nd

Raman¹

1968

Nuclear Physics A

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New higher levels of 144Nd in the decay of 144Pm

Cited by 7 publications

References 15 publications

Measurements of the conversion lines of the 742 KeV transition in the decay of143Pm

Measurements of the conversion lines of the 742 KeV transition in the decay of143Pm

Investigation of Simple Portable Telescope Validity for Muon Detection Inside Metals

The decay of 44Pm and the energy levels of 144Nd

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